Home / 8,318.66-11,479.75-4,782.56

Finding the Fourth Proportional to 8,318.66, 11,479.75 and 4,782.56

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Solution

The fourth proportional to 8,318.66, 11,479.75 and 4,782.56 is: 6,599.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.66 : 11,479.75 = 4,782.56 : x
  2. Step 2: Convert to fraction form
    8,318.66/11,479.75 = 4,782.56/x
  3. Step 3: Cross multiply
    8,318.66x = 11,479.75 × 4,782.56
  4. Step 4: Simplify right side
    8,318.66x = 54,902,593.16
  5. Step 5: Solve for x
    x = 54,902,593.16/8,318.66
  6. Step 6: Final answer
    x = 6,599.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.